random keypress problem

Hello, I have my razer huntsman regular for over 2 years now, and today this suddenly happens: some specific keys are pressed randomly, most frequent once are iu7; It will happen randomly, regardless of you typing or not, even you left pc it will still be pressed when you have the keystroke light on the key will light up when it presses, but it did not physically press itself, at least no sound I connected it to another PC and same thing happen I tried to reset by press esc caps and space, first reset makes the keyboard unuseable, doing reset again the keyboard is back to the problem again I tried to clean dust as well any other helps?